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标题: 比较结构中从句的谓语问题 [打印本页]

作者: sunlight841206    时间: 2010-3-2 16:42
标题: 比较结构中从句的谓语问题
Salt deposits andmoisture threaten to destroy the Mohenjo-Daro excavation in Pakistan, the siteof an ancient civilization that flourished atthe same time as (did)the civilizations  in the Nile delta andthe river valleys of the Tigris and Eupgrates.
定语从句"
that flourished atthe same time as (did)the civilizations",其中的did可以存在么?类似于这样的do/does/助动词,他们是必须存在的么?何时可以省略?

作者: sunlight841206    时间: 2010-3-3 17:07
唔~~~~~都一天了,咋还没人回答呢?难道真是问题太搓了?
作者: wyfish    时间: 2010-3-3 17:34
助动词和情态动词最好是补出,在有的题里也有不补出的,也不算错。这时候就得看哪个错得更大。。。




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